A yarn breakage alarm detection device

Abstract

The utility model discloses a yarn break alarm detection device, in which an electric control module is fixedly installed in a yarn storage body; the module is fixedly installed in the yarn storage body; a first spring comprises a free end and a connecting end, and the connecting end is fixedly installed on a fixed block; a first end of a first signal line is electrically connected to the electric control module, and a second end of the first signal line is fixedly connected to a position below the free end of the first spring corresponding to the fixed block; a first end of a second signal line is electrically connected to the electric control module, and a second end of the second signal line is fixedly connected to the connecting end of the first spring and electrically connected to the first spring; a yarn break swing rod is swingably arranged on the yarn storage body; a magnetic block is fixedly installed on the fixed block, and the magnetic block is used to attract the yarn break swing rod to a position where the free end of the first spring is crimped, thereby eliminating the process of welding the conductive wire to the yarn break swing rod, greatly saving installation time, and in addition, by arranging the magnetic block, when yarn break occurs, it can be ensured that the first signal line and the second signal line are effectively connected.

Description

Technical Field

[0001] The utility model relates to the technical field of textile machinery, in particular to a yarn break alarm detection device. Background Art

[0002] The yarn storage device is an important part of the knitting machine. The yarn storage device mainly includes a housing and a main shaft and a yarn storage drum installed thereon. The yarn storage drum is sleeved with a yarn pressing ring and a tension ring. The main shaft is at the center of the yarn storage drum, and the main shaft drives the yarn storage drum to rotate to store yarn. Yarn storage is the process of feeding yarn and storing it on the yarn storage drum, and yarn delivery is the process of outputting yarn from the yarn storage drum through the tension ring. Existing yarn storage devices are equipped with a yarn break alarm device, such as a new type of electronic yarn storage device disclosed in a Chinese patent (authorization announcement number CN218642933U). When a yarn break occurs, the yarn break swing rod swings downward, triggering the yarn break alarm device to remind the user of the yarn break and stop the motor and the yarn storage drum from rotating through the control circuit board.

[0003] Existing yarn break alarm device is as follows Figure 1 As shown, it includes a first signal line 40, a second signal line 50, a fixed block 20, a connecting column 11, a first reed 30, a broken yarn swing rod 60 and an electric control template. The fixed block 20 and the connecting column 11 are fixedly installed in the yarn storage device body 10. The first reed 30 has a connecting end and a free end. The connecting end of the first reed 30 is fixedly installed on the fixed block 20 by a fastener. The first end of the first signal line 40 is fixedly connected to the connecting column 11, and the second end of the first signal line 40 is electrically connected to the electric control template. The first end is welded to the yarn breaking swing rod 60 through the conductive wire 12, the first end of the second signal wire 50 is connected to the connecting end of the first reed 30, and the second end of the second signal wire 50 is electrically connected to the electronic control template. When the yarn breaks, the yarn breaking swing rod 60 swings toward the free end of the first reed 30 and crimps the first reed 30. At this time, the first signal wire 40 and the second signal wire 50 are electrically connected through the conductive wire 12, the yarn breaking swing rod 60 and the first reed 30, thereby controlling the motor and the yarn storage drum to stop rotating through the electronic control module.

[0004] However, the existing yarn break alarm device has the following disadvantages: 1. Not only does it need to weld the conductive wire 12 to the yarn break swing rod 60, but it also needs to set a connecting column 11, which makes the processing very inconvenient; 2. When the yarn breaks, the yarn break swing rod 60 cannot contact the first reed 30 in time or cannot contact it properly, resulting in the first signal line 40 and the second signal line 50 being unable to conduct, thereby affecting the electronic control module to control the motor and the yarn storage drum to stop rotating. Summary of the invention

[0005] The purpose of the utility model is to provide a yarn break alarm detection device, which eliminates the process of welding the conductive wire and the yarn break swing rod compared with the prior art, greatly saving installation time; in addition, by setting a magnetic block, when yarn breakage occurs, it can ensure that the first signal line and the second signal line are effectively connected.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: a yarn break alarm detection device, comprising

[0007] A yarn storage machine body, wherein an electric control module is fixedly installed in the yarn storage machine body;

[0008] A fixed block, fixedly installed in the yarn storage device body;

[0009] A first reed, the first reed comprising a free end and a connecting end, the connecting end of the first reed being fixedly connected to the fixing block;

[0010] A first signal line, a first end of the first signal line is electrically connected to the electric control module, and a second end of the first signal line is fixedly connected to a position below the free end of the first spring sheet corresponding to the fixed block;

[0011] A second signal line, a first end of the second signal line is electrically connected to the electric control module, and a second end of the second signal line is fixedly connected to the connecting end of the first reed and electrically connected to the first reed;

[0012] A broken yarn swinging rod, which is swingably arranged on the yarn storage device body;

[0013] A magnetic block, which is fixedly mounted on a fixed block or a yarn storage device body and is used to provide suction to the broken yarn swing rod;

[0014] When the yarn breaks, the yarn breaking swing arm swings toward the side close to the free end of the first reed and under the action of the magnetic force of the magnetic block, the free end of the first reed is stably crimped to a position electrically connected to the second end of the first signal line, so that the first signal line and the second signal line are conductively connected through the first reed. At this time, the electronic control module controls the motor of the yarn storage device body and the yarn storage drum to stop rotating.

[0015] Furthermore, a conductive part is provided at a position below the free end of the first reed corresponding to the fixed block, and the second end of the first signal line is fixedly connected to the conductive part. When the broken yarn swing arm is pressed against the conductive part, the first signal line and the second signal line are electrically connected through the conductive part and the first reed.

[0016] Furthermore, a limiting rod is provided on the fixed block, and the limiting rod limits the swing angle of the yarn-breaking swing rod toward the side away from the free end of the first reed.

[0017] Furthermore, the fixing block includes a horizontal mounting surface and an inclined surface located at one side of the free end of the first spring sheet, the inclined surface is arranged to be inclined downward from the side adjacent to the horizontal mounting surface to the side away from the horizontal mounting surface, and the upper end surface of the magnetic block is lower than the horizontal mounting surface.

[0018] Furthermore, the fixing block is provided with limiting parts on both sides corresponding to the first spring piece, and the limiting parts are used to limit the left-right deviation of the first spring piece.

[0019] A yarn break alarm detection device, comprising

[0020] A yarn storage machine body, wherein an electric control module is fixedly installed in the yarn storage machine body;

[0021] A fixed block, fixedly installed in the yarn storage device body;

[0022] A first reed, the first reed comprising a free end and a connecting end, the connecting end of the first reed being fixedly connected to the fixing block;

[0023] A second reed, the second reed comprising a free end and a connecting end, the connecting end of the second reed being fixedly connected to the fixing block, and the free end of the second reed and the free end of the first reed facing the same side;

[0024] A first signal line, a first end of the first signal line is electrically connected to the electric control module, and a second end of the first signal line is fixedly connected to the connecting end of the second reed and electrically connected to the second reed;

[0025] A second signal line, a first end of the second signal line is electrically connected to the electric control module, and a second end of the second signal line is fixedly connected to the connecting end of the first reed and electrically connected to the first reed;

[0026] A broken yarn swinging rod, which is swingably arranged on the yarn storage device body;

[0027] A magnetic block, which is fixedly mounted on the fixed block or the yarn storage device body. When the yarn-breaking swinging rod swings toward the free ends of the first reed and the second reed, the magnetic force of the magnetic block can stably press against the free ends of the first reed and the second reed;

[0028] When the yarn breaks, the yarn breaking swing arm swings toward the free ends of the first reed and the second reed and is stably pressed against the free ends of the first reed and the second reed under the magnetic force of the magnetic block, so that the first signal line and the second signal line are connected through the first reed, the yarn breaking swing arm and the second reed. At this time, the electronic control module controls the motor of the yarn storage device body and the yarn storage drum to stop rotating.

[0029] Furthermore, the first reed and the second reed are arranged at intervals on the fixed block, and the magnetic block is fixedly mounted on one side of the fixed block located at the free ends of the first reed and the second reed, so that the broken yarn swing arm can press against the free ends of the first reed and the second reed at the same time.

[0030] Furthermore, the fixing block is provided with limiting parts at positions corresponding to the first spring piece and the second spring piece, respectively, and the limiting parts are used to limit the left-right deviation of the first spring piece and the second spring piece.

[0031] Furthermore, the fixing block includes a horizontal mounting surface and an inclined surface located at one side of the free end of the first spring sheet, the inclined surface is arranged to be inclined downward from the side adjacent to the horizontal mounting surface to the side away from the horizontal mounting surface, and the upper end surface of the magnetic block is lower than the horizontal mounting surface.

[0032] Furthermore, a limiting rod is provided on the fixed block, and the limiting rod limits the swing angle of the yarn-breaking swing rod toward a side away from the free ends of the first reed and the second reed.

[0033] In summary, the utility model has the following beneficial effects:

[0034] Compared with the prior art, the utility model eliminates the process of welding the conductive wire and the yarn-breaking swing rod, greatly saving installation time; in addition, by arranging the magnetic block, the first signal line and the second signal line can be effectively connected when the yarn is broken. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a structural schematic diagram of the prior art of the utility model.

[0036] Figure 2 It is a partial structural schematic diagram of a yarn storage device body of the utility model.

[0037] Figure 3 It is a structural schematic diagram of the first embodiment of the utility model.

[0038] Figure 4 It is a cross-sectional view of the first embodiment of the present utility model.

[0039] Figure 5 It is a cross-sectional view of the second embodiment of the present utility model.

[0040] Figure 6 It is a structural schematic diagram of embodiment 6 of the present utility model.

[0041] In the figure: 10, yarn storage device body; 11, connecting column; 12, conductive wire; 20, fixing block; 21, conductive part; 22, limiting rod; 23, horizontal mounting surface; 24, inclined surface; 25, limiting part; 30, first reed; 40, first signal line; 50, second signal line; 60, broken yarn swing rod; 70, magnetic block; 80, second reed. DETAILED DESCRIPTION

[0042] The utility model is further described below in conjunction with the accompanying drawings.

[0043] In the description of the present utility model, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the attached drawings, or the orientation or position relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0044] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0045] like Figure 1-5 As shown in the utility model, for the sake of easy understanding, the "upper", "lower", "left", "right", "front" and "rear" mentioned in the utility model are attached Figure 6 As a reference, for example, the front side is Figure 6 The first spring 30 shown has one side of the connection end and the rear side as shown in FIG. Figure 6 As shown, on one side of the free end of the first reed 30 , the limiting portion 25 is arranged on the left and right sides of the first reed 30 .

[0046] like Figure 2-4 As shown, embodiment 1: a yarn break alarm detection device includes a yarn storage device body 10, a fixed block 20, a first reed 30, a first signal line 40, a second signal line 50, a yarn break swing rod 60 and a magnetic block 70, which constitute the basic structure in this embodiment.

[0047] An electric control module is fixedly installed in the yarn storage body 10; a receiving cavity is arranged in the yarn storage body 10, and a fixed block 20 is fixedly installed in the receiving cavity of the yarn storage body 10; a broken yarn swing rod 60 is swingably arranged in the yarn storage body 10, and one end of the broken yarn swing rod 60 extends into the receiving cavity, and the other end of the broken yarn swing rod 60 is located outside the receiving cavity for yarn feeding; a first reed 30 includes a free end and a connecting end, and the connecting end of the first reed 30 is fixedly connected to the fixed block 20; a first end of the first signal line 40 is electrically connected to the electric control module, and a second end of the first signal line 40 is fixedly connected to the fixed block 20 corresponding to the first reed 30 The first end of the second signal line 50 is electrically connected to the electronic control module, and the second end of the second signal line 50 is fixedly connected to the connecting end of the first reed 30 and is electrically connected to the first reed 30; the magnetic block 70 is fixedly installed on the fixed block 20 or the yarn storage device body 10, and preferably the magnetic block 70 is arranged on the fixed block 20. Specifically, the fixed block 20 is provided with a receiving groove on one side corresponding to the free end of the first reed 30, and the magnetic block 70 is accommodated in the receiving groove and the upper end of the magnetic block 70 extends out of the receiving groove, and the magnetic block 70 is used to attract the broken yarn swing rod 60 at the position of crimping the free end of the first reed 30.

[0048] When the yarn breaks, the yarn breaking swing rod 60 swings toward the side close to the free end of the first reed 30 and under the action of the magnetic force of the magnetic block 70, the free end of the first reed 30 is stably crimped to a position electrically connected to the second end of the first signal line 40, so that the first signal line 40 and the second signal line 50 are conductively connected through the first reed 30. At this time, the electronic control module controls the motor of the yarn storage device body 10 and the yarn storage drum to stop rotating.

[0049] Compared with the prior art, the utility model eliminates the process of welding the conductive wire 12 and the yarn-breaking swing rod 60, thus greatly saving installation time. In addition, by providing the magnetic block 70, when yarn breaks, the yarn-breaking swing rod 60 can be stably pressed against the free end of the first reed 30 to electrically connect the free end of the first reed 30 with the second end of the first signal line 40, thereby achieving effective contact, and at the same time ensuring that the first signal line 40 and the second signal line 50 are effectively and stably connected.

[0050] like Figure 2-5The second embodiment is as follows: on the basis of the first embodiment, a conductive part 21 is provided at a position below the free end of the first reed 30 corresponding to the fixed block 20, and the second end of the first signal line 40 is fixedly connected to the conductive part 21. When the broken yarn swing arm 60 is pressed against the conductive part 21, the first signal line 40 and the second signal line 50 are electrically connected through the conductive part 21 and the first reed 30. The second end of the first signal line 40 can be a flat metal connector, which is fixed to the fixed block 20 through the conductive part 21. When the broken yarn swing arm is attracted by the magnetic block 70, the free end of the first reed 30 is pressed against the metal connector or the conductive part 21, thereby conducting the first signal line 40 and the second signal line 50 through the first reed 30 and the conductive part 21.

[0051] Embodiment 3: Based on the embodiment 1, a limit rod 22 is provided on the fixed block 20 , and the limit rod 22 limits the swing angle of the yarn-breaking swing rod 60 toward the side away from the free end of the first reed 30 .

[0052] Embodiment 4: On the basis of embodiment 1 or embodiment 2 or embodiment 3, the fixed block 20 includes a horizontal mounting surface 23 and an inclined surface 24 located on one side of the free end of the first spring leaf 30, and the inclined surface 24 is arranged to be inclined downward from the side adjacent to the horizontal mounting surface 23 to the side away from the horizontal mounting surface 23, and the upper end surface of the magnetic block 70 is lower than the horizontal mounting surface 23. By setting the inclined surface 24, the first spring leaf 30 can be effectively engaged with the second end or the conductive part 21 of the first signal line 40 when pressed by the broken yarn swing rod 60, thereby ensuring that when the yarn is broken, the first signal line 40 and the second signal line 50 are connected in time and stably, so that the electronic control module effectively controls the motor of the yarn storage device body 10 and the yarn storage drum to stop rotating.

[0053] Embodiment 5: On the basis of embodiment 1 or embodiment 2 or embodiment 3, the fixed block 20 is respectively provided with limiting portions 25 on both sides corresponding to the first reed 30, and the limiting portions 25 limit the left and right deviation of the first reed 30 to prevent the first reed 30 from being unable to be crimped due to deviation when the broken yarn swing rod 60 swings toward the free end of the first reed 30, that is, to ensure that the free end of the first reed 30 is directly above the second end of the first signal line 40 or the conductive portion 21 when the broken yarn swing rod 60 swings toward the free end of the first reed 30.

[0054] like Figure 6 As shown, embodiment six: a yarn break alarm detection device, including a yarn storage device body 10, a fixed block 20, a first reed 30, a second reed 80, a first signal line 40, a second signal line 50, a yarn break swing rod 60 and a magnetic block 70, which constitute the basic structure in this embodiment.

[0055] An electric control module is fixedly installed in the yarn storage body 10; a accommodating cavity is arranged in the yarn storage body 10, and the fixed block 10 is fixedly installed in the accommodating cavity of the yarn storage body 10; a yarn-breaking swing rod 60 is swingably arranged in the yarn storage body 10, and one end of the yarn-breaking swing rod 60 extends into the accommodating cavity, and the other end of the yarn-breaking swing rod 60 is located outside the accommodating cavity for yarn feeding; a first reed 30 includes a free end and a connecting end, and the connecting end of the first reed 30 is fixedly connected to the fixed block 20; a second reed 80 also includes a free end and a connecting end, and the connecting end of the second reed 80 is fixedly connected to the fixed block 20, and the free end of the second reed 80 and the free end of the first reed 30 face the same side; a first end of the first signal line 40 is electrically connected to the electric control module, and the first signal line 4 0, the second end of the second signal line 50 is fixedly connected to the connecting end of the second reed 80 and is electrically connected to the second reed 80; the first end of the second signal line 50 is electrically connected to the electric control module, and the second end of the second signal line 50 is fixedly connected to the connecting end of the first reed 30 and is electrically connected to the first reed 30; the magnetic block 70 is fixedly installed on the fixed block 20 or the yarn storage device body 10, specifically, the fixed block 20 is provided with a receiving groove on one side corresponding to the free ends of the first reed 30 and the second reed 80, the magnetic block 70 is received in the receiving groove and the upper end of the magnetic block 70 extends out of the receiving groove, when the broken yarn swing rod 60 swings toward the free ends of the first reed 30 and the second reed 80, it can be stably pressed against the free ends of the first reed 30 and the second reed 80 under the action of the magnetic force of the magnetic block 70.

[0056] When the yarn breaks, the yarn break swing rod 60 swings toward the free ends of the first reed 30 and the second reed 80 and is stably pressed against the free ends of the first reed 30 and the second reed 80 under the magnetic force of the magnetic block 70, so that the first signal line 40 and the second signal line 50 are connected through the first reed 30, the yarn break swing rod 60 and the second reed 80. At this time, the electronic control module controls the motor of the yarn storage device body 10 and the yarn storage drum to stop rotating.

[0057] Embodiment 7: On the basis of Embodiment 6, the first reed 30 and the second reed 80 are arranged at intervals on the fixed block 20, and the magnetic block 70 is fixedly mounted on the fixed block 20 on one side of the free ends of the first reed 30 and the second reed 80. Through this arrangement, it can be ensured that when the broken yarn swing rod 60 is pressed against the free end of the first reed 30, it can simultaneously contact and press against the free ends of the first reed 30 and the second reed 80, thereby making the first signal line 40 and the second signal line 50 conductive through the first reed 30, the broken yarn swing rod 60 and the second reed 80.

[0058] Embodiment 8: On the basis of embodiment 6 or embodiment 7, the fixed block 20 is provided with limiting portions 25 corresponding to the positions of the first reed 30 and the second reed 80, respectively. The limiting portions 25 limit the left-right deviation of the first reed 30 and the second reed 80 to prevent the first reed 30 from being simultaneously crimped due to deviation when the broken yarn swing rod 60 swings toward the free ends of the first reed 30 and the second reed 80, that is, to ensure that the free ends of the first reed 30 and the second reed 80 can be simultaneously pressed against by the broken yarn swing rod 60 when the broken yarn swing rod 60 swings toward the free end of the first reed 30.

[0059] Embodiment 9: On the basis of embodiment 6 or embodiment 7, the fixed block 20 includes a horizontal mounting surface 23 and an inclined surface 24 located on one side of the free end of the first reed 30, and the inclined surface 24 is arranged to be inclined downward from the side adjacent to the horizontal mounting surface 23 to the side away from the horizontal mounting surface 23, and the upper end surface of the magnetic block 70 is lower than the horizontal mounting surface 23. By setting the inclined surface 24, the first reed 30 and the second reed 80 can be effectively engaged with the yarn breaking swing rod 60 when being pressed by the yarn breaking swing rod 60 at the same time, thereby ensuring that when the yarn is broken, the first signal line 40 and the second signal line 50 are connected in time and stably, so that the electronic control module effectively controls the motor of the yarn storage device body 10 and the yarn storage drum to stop rotating.

[0060] Embodiment 10: Based on embodiment 6 or embodiment 7, a limit rod 22 is provided on the fixed block 20, and the limit rod 22 limits the swing angle of the yarn-breaking swing rod 60 away from the free ends of the first reed 30 and the second reed 80.

[0061] The above description is only a preferred embodiment of the present utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A yarn break alarm detection device, characterized in that: include A yarn storage device body (10), wherein an electric control module is fixedly installed in the yarn storage device body (10); A fixed block (20) is fixedly installed in the yarn storage device body (10); A first reed (30), the first reed (30) comprising a free end and a connecting end, the connecting end of the first reed (30) being fixedly connected to the fixing block (20); A first signal line (40), wherein a first end of the first signal line (40) is electrically connected to the electric control module, and a second end of the first signal line (40) is fixedly connected to a position below a free end of the first reed (30) corresponding to the fixed block (20); A second signal line (50), wherein a first end of the second signal line (50) is electrically connected to the electric control module, and a second end of the second signal line (50) is fixedly connected to a connection end of the first reed (30) and electrically connected to the first reed (30); A broken yarn swing rod (60), the broken yarn swing rod (60) is swingably arranged on the yarn storage device body (10); A magnetic block (70), the magnetic block (70) is fixedly mounted on the fixed block (20) or the yarn storage device body (10); When the yarn breaks, the yarn-breaking swing rod (60) swings toward the free end of the first reed (30) and, under the magnetic force of the magnetic block (70), the free end of the first reed (30) is stably crimped to a position electrically connected to the second end of the first signal line (40), so that the first signal line (40) and the second signal line (50) are connected through the first reed (30). At this time, the electric control module controls the motor of the yarn storage device body (10) and the yarn storage drum to stop rotating.

2. A yarn break alarm detection device according to claim 1, characterized in that: The fixed block (20) is provided with a conductive part (21) at a position below the free end of the first reed (30), and the second end of the first signal line (40) is fixedly connected to the conductive part (21). When the broken yarn swing lever (60) is pressed against the conductive part (21), the first signal line (40) and the second signal line (50) are electrically connected via the conductive part (21) and the first reed (30).

3. A yarn break alarm detection device according to claim 1, characterized in that: A limiting rod (22) is arranged on the fixed block (20), and the limiting rod (22) limits the swing angle of the broken yarn swing rod (60) toward the side away from the free end of the first reed (30).

4. A yarn breakage alarm detection device according to any one of claims 1 to 3, characterized in that: The fixing block (20) comprises a horizontal mounting surface (23) and an inclined surface (24) located on one side of the free end of the first spring sheet (30), the inclined surface (24) being arranged to be inclined downward from a side adjacent to the horizontal mounting surface (23) to a side away from the horizontal mounting surface (23), and the upper end surface of the magnetic block (70) is lower than the horizontal mounting surface (23).

5. A yarn break alarm detection device according to any one of claims 1 to 3, characterized in that: The fixing block (20) is provided with limiting portions (25) on both sides corresponding to the first spring leaf (30), and the limiting portions (25) are used to limit the deviation of the first spring leaf (30) in the left and right directions.

6. A yarn break alarm detection device, characterized in that: include A yarn storage device body (10), wherein an electric control module is fixedly installed in the yarn storage device body (10); A fixed block (20) is fixedly installed in the yarn storage device body (10); A first reed (30), the first reed (30) comprising a free end and a connecting end, the connecting end of the first reed (30) being fixedly connected to the fixing block (20); A second reed (80), the second reed (80) comprising a free end and a connecting end, the connecting end of the second reed (80) being fixedly connected to the fixing block (20), and the free end of the second reed (80) and the free end of the first reed (30) facing the same side; A first signal line (40), wherein a first end of the first signal line (40) is electrically connected to the electric control module, and a second end of the first signal line (40) is fixedly connected to a connection end of the second reed (80) and electrically connected to the second reed (80); A second signal line (50), wherein a first end of the second signal line (50) is electrically connected to the electric control module, and a second end of the second signal line (50) is fixedly connected to a connection end of the first reed (30) and electrically connected to the first reed (30); A broken yarn swing rod (60), the broken yarn swing rod (60) is swingably arranged on the yarn storage device body (10); A magnetic block (70), the magnetic block (70) is fixedly mounted on the fixed block (20) or the yarn storage device body (10); When the yarn breaks, the yarn-breaking swing rod (60) swings toward the free ends of the first reed (30) and the second reed (80) and is stably pressed against the free ends of the first reed (30) and the second reed (80) under the action of the magnetic force of the magnetic block (70), so that the first signal line (40) and the second signal line (50) are connected through the first reed (30), the yarn-breaking swing rod (60) and the second reed (80). At this time, the electric control module controls the motor of the yarn storage device body (10) and the yarn storage drum to stop rotating.

7. A yarn breakage alarm detection device according to claim 6, characterized in that: The first reed (30) and the second reed (80) are arranged at intervals on the fixed block (20), and the magnetic block (70) is fixedly mounted on the fixed block (20) at one side of the free ends of the first reed (30) and the second reed (80), so that the broken yarn swing rod (60) can be pressed against the free ends of the first reed (30) and the second reed (80) at the same time.

8. A yarn breakage alarm detection device according to claim 6 or 7, characterized in that: The fixing block (20) is provided with limiting portions (25) at positions corresponding to the first spring piece (30) and the second spring piece (80), respectively, and the limiting portions (25) are used to limit the left-right deviation of the first spring piece (30) and the second spring piece (80).

9. A yarn breakage alarm detection device according to claim 6 or 7, characterized in that: The fixing block (20) comprises a horizontal mounting surface (23) and an inclined surface (24) located on one side of the free end of the first spring sheet (30), the inclined surface (24) being arranged to be inclined downward from a side adjacent to the horizontal mounting surface (23) to a side away from the horizontal mounting surface (23), and the upper end surface of the magnetic block (70) is lower than the horizontal mounting surface (23).

10. A yarn breakage alarm detection device according to claim 6 or 7, characterized in that: A limiting rod (22) is arranged on the fixed block (20), and the limiting rod (22) limits the swing angle of the broken yarn swing rod (60) toward a side away from the free ends of the first reed (30) and the second reed (80).

Images